Dore h



2 Sheets-Sheet l.

W. SPA'LOK'HAVER.

(No Model.)

ROUTING MACHINE.

No. 544,011. Patented Aug. 6,1895.

(No Model.)

Y Y 2 Sheets-Sheet 2'.

W.-SPALGKHAVER.

ROUTING MACHINE. No. 544,011. Patented Aug". 6, 18 95.

11258? I Evian f0? UNrrnn STATES PAT T Ohm-en.

WILLIAM SPALCKHAVER, OF BROOK-LYN, ASSIGNOR TO ROBERT HOE, THEO- DORE H.MEAD, AND CHARLES IV. CARPENTER, OF NEW YORK, N. Y.

ROUTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 544,011 dated August 6,189 5.

Application filed September 17, 1894. $erial No. 523,229. (No model.)

' York, have invented certain new-and useful Improvements inRouting-Machines, fully described and represented in the followingspecilication and the accompanying drawings, forming a part of the same.to This invention relates to certain improvements in routing-machineswhich are especially applicable to machines having a generalconstruction similar to that described in my application for LettersPatent of the 5 United States executed on even date with thisapplication, filed September 17, 1894:,and serially numbered 523,228.

It is found in practice that the high speed at which the routing-tool ismade-to revolve 2o tendsto cause a very considerable vibration of thebracket or arm by which the tool is carried, and where the movement ofthe tool is controlled by a handle. on the arm or bracket, as iscustomary, the vibrations, being communicated to the hand of theoperator, not only affect his accuracy in guiding the tool, but alsoconsiderably lessen the time for which he can operate the machine, theconstant and rapid vibrations having a very tir- 3o ing and injuriouseffect on the wrist and arm of the operator.

One of the objects of the present invention is to provide a means forcontrolling the movements of the tool so that the operator does notreceive the vibrations; and to this end.I mount the tool-holder on acarriage which is reciprocated by means of a worm-shaft, the rotation ofwhich is controlled by the operator, means also being provided formoving the tool into or out of operative position, preferably by afoot-treadle, the carriage being preferably pivotally mounted on theWorm-shaft.

Another object of the invention is to provide a machine which may beused for oper- 5 ating on plates of dilferent curvatures, and

this object I attain by constructions hereinafter described, and pointedout in the claims.

The invention also consists in various details of construction of theseand other parts of the machine, all as willhereinafterbe fullydescribed, and pointed out in the claims.

As a full understanding of the invention can best be had by a detaileddescription of a machine embodying the various features of the inventionin the preferred form, all further general description will be omittedand such a full description will now be given, reference being bad tothe accompanying drawings, in which- Figure 1 is a side elevation of amachine embodying the various features of the invention. Fig. 2 is afrontelevation. Fig. 3 is a detail showing how the segmental forms forincreasing the diameter of the cylinder may be secured to the cylinder.

Referring to the drawings,'A is a suitable frame by which the variousparts of the machine are supported.

A cylinder 10, by which the plates to be 0perated upon are supported, iscarried by a shaft 11 mounted in bearings at either side of the machine.

In order that the machine may be adapted to operate upon plates ofdifferent curvatures, segmental beds 12 are provided to carry the 7plates, and these segmental beds 'may be secured to the cylinder 10 inany convenient manner, so as to be readily removable, as by screws 13,as shown in Fig. 3. By providing a number of these segmental beds ofdifferent thicknesses, and, therefore, having exteriorsurfacescorresponding to cylinders of different diameters, cylinder 10may be made to carry plates of different curvatures.

Any suitable means may be employed for securing the plates to thesegmental beds, as by providing stationary clamping-pieces 14 andmovable clamps 15, sliding in slots 16 and operated by screws 17, sideguide-pieces 18 also being preferably provided.

As using a thicker or thinner segmental bed will bring the plate neareror farther away from the tool, it becomes necessary to provide foradjusting either the cylinder or the tool, or both, toward or away fromthe other or each other. In the construction shown, the cylinder is adjustably mounted, and for this purpose the ends of the shaft 11 arejournaled in boxes 20, mounted to slide on ways 21 on the frame A, andthe boxes 20 are supported and too moved vertically by screw-shafts 22 journaled in the frame A and provided with miter-wheels 23, which aredriven by miter-Wheels 24 on a shaft 25, which may be turned by ahandwheel 26. Thus by turning the hand-Wheel 26 the cylinder may beraised or lowered to bring the surface of the plate carried by thecylinder to the proper height. It will thus be seen that themachinemaybe adapted, by simply changing the segmental bed and adjusting theposition of the cylinder, to operateon plates differing considerably incurvature. It will be observed that changing the segmental bed forone ofa different thickness is in effect the same as changing the cylinder 10for one of a different diameter, and that the means shown is but apreferred way of changing the curvature of the bed to receive plates ofdifferent curvatures. The cylinder 10 is rotated preferably by means ofa worm 30, carried by a shaft 31, provided with a hand-wheel 32 andjournaled in brackets 33, carried by one of the boxes 19, and which wormengages a worm-wheel 34 on the shaft 11.

Extending longitudinally of the machine, parallel with the axis of thecylinder 10, is a worm-shaft 35, pivoted on which, by means of a sleeve36 interiorly threaded to engage the thread of the worm-shaft, is acarriage or bracket 37, by which the tool-holder is carried. Theworm-shaft is provided at one end with a hand-wheel 38, by turning whichthe carriage 37 may be moved in either direction at will, while being atall times free to be rocked on said worm-shaft to move the tool into orout of operative position, the toobholder be ing mounted some distancein front of the shaft.

The carriage 37 is preferably rocked by means of a foot-treadle 40connected in any suitable manner to the carriage, so that when thetreadle is depressed the carriage will be rocked and the tool carriedinto cutting position. The treadle preferably operates throughconnecting-rods 41 and a cross-bar 42, which engages arearwardly-extending arm 43 of the carriage and the ends of whichcrossbar ride in slots 44 in the frame A. To provide for adjusting thelength of the rocking movement of the carriage set-screws 45 may beprovided to vary the length of the slots 44. The arm 43 is preferablyprovided with a counterweight, as 46, to hold the tool normally out ofcutting position,although other means may be employed for returning thecarriage to normal position, as a spring connected to the arm 43 or tothe treadle or its connections.

Any suitable rotary cutter-holder may be used, and it may be mounted inany convenient manner on the carriage 37, preferably in a positionvertically over the axis of the cylinder 10. I prefer to use such aspindle and mounting therefor as is described in the specification of mysaid application, Serial No. 523,228, which I will not describe here, asit is there fully described, and as any other suitable construction maybe used.

The cutter-holder is preferably driven by abelt arranged as described inmy above-said application-that is, the belt runs in either directionfrom the carriage in a line parallel to the line in which the carriagemoves. As shown, the belt 49, after passing around the pulley on thetool holder, turns on horizontal sheaves 51 and 52 on the sleeve 36, andpasses thence in either direction parallel with the worm-shaft 35 tovertical sheaves 53 and 54, thence to the driving-pulley 55. The tensionof the belt will thus not be affected by the moving of the carriage, andthe movement of the carriage will not be interferred with whether thebelt be in motion or at rest, the belt simply rolling on the pulley 50and sheaves 51 and 52. The driving-pulley 55 is fast on a shaft 56,which is preferably provided with fast and loose pulleys 57 and 58 forthe main driving-belt by which the machine is driven. A belt-shifter 59leads to a convenient position at the front of the machine. The beltpreferably passes over a guide-sheave 60, between one of the sheaves 53or 54 and the driving-pulley 55, and this sheave 60 may be adjustable,as by being carried byan adjustable arm 61, to provide for regulatingthe tension of the belt, or any other means may be employed to adjustthe tension of the belt.

In operation a segmental bed of the proper thickness being secured tothe cylinder, and the plate to be operated upon being secured to thebed,and the cylinder being adjusted to the proper height, and themachine having been started by shifting the main driving-belt to thefast pulley 57, the operator by the hand-wheel 38 controls thelongitudinal movement of the tool and by the hand-wheel controls thetransverse movement of the plate, and with his foot on the treadle lOthrows the tool into or out of cutting position at will. The operator isthus able, by moving one or the other of the said hand-wheels, to causethe tool to rout in a straight line either longitudinally ortransversely of the plate,or by moving both at once may cause the toolto rout in any desired direction and is able at any moment to stop thecutting.

It will be observed that the operator is enabled thus to control themovements of the tool without receiving the vibrations therefrom, as isthe case where the tool is guided directly, as has been customaryheretofore. He is thus enabled to guide the tool more accurately andwith less fatigue, and consequently can do better work and a greateramount of work.

It may sometimes be desirable to secure the carriage rigidly on theworm-shaft 35, as when it is desired to cut in a straight linetransversely of the plate; and for this purpose I provide a suitableclamp carried by the carriage, as a strap extending around theWorm-shaft and which may be tightened by means of a screw (50.

It will be understood that I am not to be limited to the exactconstruction or arrange- IIO selves form part of the invention, asclaimed.'

By the expression rotatable cylindrical bed as used in the claims ismeant any bed or support for a plate or other body having a curvedsurface, which bed or support is adapted to be operated so as to'movethe surface of the plate or other body transversely to the axis of itscurvature or transversely of the plate, as that term has been used inthe foregoing description, although a cylinder such as shown is thepreferred form'of bed.

What I claim is 1. The combination of a rotary tool holder, a carriagefor said tool holder,.a worm shaft by which said carriage isreciprocated and on which it is pivoted, and means for driving said toolholder, substantially as described.

2. The combination of a rotary tool holder, a carriage for said toolholder, a worm shaft by which said carriage is reciprocated and on whichit is pivoted, means for driving said tool holder, means for rotatingsaid worm shaft, and means for rocking the carriage on the worm shaft tomove the tool into operative position, substantially as described.

3. The combination of a rotary tool holder, a carriage for said toolholder having a sleeve threaded internally to engage the thread on aworm shaft, said worm shaft, means for driving said tool holder, meansfor rotating said worm shaft, and a foot treadle and connections forrocking the carriage onthe worm shaft to move the tool into operativeposition, substantially as described.

4. The combination of a rotary tool holder, a carriage for said toolholder pivoted on a shaft, means for reciprocating the carriage on saidshaft, means for drivingsaid tool holder, and a foot treadle andconnections for rock ing the carriage on said shaft to move the toolinto and out of operative position, substantially as described.

5. Thecombination of a rotary tool holder, a carriage for said toolholder, a worm shaft by which said carriage is reciprocated and on whichit is pivoted, means for driving said tool holder, means for rotatingsaid worm shaft, means for rocking the carriage on the worm shaft tomove the tool into operative position, and means for locking saidcarriage to said worm shaft, substantially as described.

-6. The combination of a rotary tool holder, a carriage for said toolholder, a worm shaft by which said tool holder is reciprocated and onwhich it is pivoted, and a driving belt for said tool holder which liesparallel with and near to said worm shaft in either direction from thetool holder, substantially as described.

7. The combination of a worm shaft, a carriage pivoted on the wormshaftby means of a sleeve threaded to engage 'the thread of the wormshaft, a rotary tool holder carried by the carriage, and a driving beltfor the tool holder which lies parallel with said worm shaft in eitherdirection from the carriage, substantially as described.

8. The combination of a worm shaft, a carriage pivoted on the worm shaftby means of a sleeve threaded to engage the thread of the worm shaft, arotary tool holder carried by the carriage, a driving belt for said toolholder, guide sheaves for said belt carried by the carriage, stationaryguide sheaves so p0- sitioned that the belt between the stationarysheaves and the sheaves on the carriage shall be parallel with the wormshaft in either direction from the carriage, a hand wheel by whichthe'worm shaft is rotated to reciprocate the carriage, and afoot treadleand connections for rocking the carriage on the worm shaft to move thetool into operative position, substantially as described.

9. The combination of arotatable cylindrical bed, a rotary tool holder,a carriage for said tool holder, a worm shaft parallel with.

the axis of the bed by which said carriage is reciprocated and on whichit is pivoted, means for driving said tool holder, means for rotatingsaid cylinder and said worm shaft, and means for rocking said carriageon said worm shaft, substantially as described.

10. The combination with a rotatable cylindrical bed and means forrotating said bed, of a worm shaft parallel with the axis of the bed andmeans for rotating said worm shaft, a rotary tool holder, a carriage forsaid tool holder pivoted on the worm shaft by means of a sleeve threadedto engage the thread of the worm shaft, means for driving said toolholder, and means for rocking the carriage on the worm shaft to move thetool into operative position, substantially as described.

11. The combination with a rotatable cylindrical bed and means forrotating said bed, of a worm shaft parallel with the axis of the bed andmeans for rotating said worm shaft, arotary tool holder, a carriage forsaid tool holder pivoted on the worm shaft by means of a sleeve threadedto engage the thread of the worm shaft, means for driving said toolholder, and a foot treadle and connections by which the carriage isrocked on the worm shaft to move the tool into operative position,substantially as described.

12. The combination with a rotatable cylindrical bed and means forrotating said bed, of a rotary tool holder, a carriage for said toolholder pivoted on a shaft parallel with the axis of said bed, means forreciprocating the carriage on said shaft, means for driving said toolholder, and a foot treadle and connections for rocking the carriage onsaid shaft to move the tool into operative position, sub-- stantially asdescribed.

IIO

13. The combination in a routing machine cylinder, means whereby thecylinder is adapted to support plates of different curvatures, a rotarytool holder mounted to reciprocate longitudinally of the cylinder, andmeans for driving said tool holder, substantially as described.

14. The combination in a routing machine for operating on curved plates,of a rotatable cylinder, means whereby the cylinder is adapted tosupport plates of different curvatures, a rotary tool holder mounted toreciprocate longitudinally of the cylinder, means for driving said toolholder, and means for adjusting the distance between the axis of saidcylinder and said tool holder, substantially as described.

15. The combination in a routing machine for operating on curved plates,of a rotatable cylinder, means whereby the cylinder is adapted tosupport plates of different curvatures, a rotary tool holder mounted toreciprocate longitudinally of the cylinder, means for driving said toolholder, and adjustable bearings for said cylinder whereby it may beadjusted toward and away from the tool holder, substantially asdescribed.

16. The combination in a routing machine for operating on curved plates,of a rotatable cylinder and a segmental bed for the plates adapted to besecured to the cylinder, substantially as described.

18. The combination of acarriage pivotally mounted, a tool holdercarried by the carriage, treadle 40, connecting rods 41, cross bar 42, arearwardly extending arm of the carriage having, a sliding connectionwith the cross bar 42, and means for reciprocating the carriage,substantially as described.

19. The combination of a carriage pivotally mounted, a tool holdercarried by a forwardly extending arm of the carriage, treadle 40,connecting rods 41, cross bar 42, rearwardly extending arm 43 having asliding connection with the cross bar 42, counter weight 46, and meansfor reciprocating the carriage, substantially as described.

20. The combination of a carriage pivotally mounted, a tool holdercarried by the carriage, treadle40, connecting rods 41, cross bar 42,adjustable slots 44 for the ends of cross bar 42, a rearwardly extendingarm of the carriage having a sliding connection with the cross bar 42,and means for reciprocating the carriage, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

\VILLIAM SPALUKIIAVER.

\Vitnesses:

EDWIN D. TUCKER, ARTHUR L. KENT.

